Lock.



H. G. VOIGHT.

LOCK.

APPLICATION FILED SEPT. 25, 1911.

1,013,524. Patented Jan.2, 1912.

wi/lme/aoeo a mu ntoa 45. .6 VZ/ewr UNITED STATEB T OFFICE.

HENRY G. VOIGI-IT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO THE AMERICANHARDWARE CORPORATION, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OFCONNECTICUT.

LOCK.

Specification of Letters Patent.

Patented J an. 2, 1912.

Application filed September 25', 1911. Serial No. 651,070.

To all whom it may concern:

Be it known that I, HENRY Gr. VoIeI-rr, a

' citizen of the United States, residing at New Britain, county ofHartford, State of Connecticut, have invented certain new and use fulImprovements in Locks, of which the following is a full, clear, andexact description.

My invention relates to improvements in looks.

The main object of my invention is to provide an improved constructionand combination of parts in that type of lock in which the lock case hasapplied thereto a cylinder look, so that look mechanism within the casemay be operated by the use of the ordinary flat pin cylinder lock key.

Incidentally there are other objects, such as facilitating the accurateadjustment of the cylinder lock and furnishing for the outside of thedoor to which the lock is applied a neat and attractive finishing plate,which exposes only the plug portion of the cylinder lock, covering andhiding from view the balance of the lock. Ordinarily pin cylinder locks,when applied to rim looks or mortise locks are inserted from the outside01. thedoor through the escutcheon, a clearance hole being provided inthe escutcheon of suflicient size to permit the entire cylinder lock topass therethrough, while the outer end of the cylinder lock is providedwith a flange which overstands the edge of the lock opening in theescutcheon plate. This is not only, as I have found, needlesslyextravagant, but, as a matter of fact, impairs in many instances thedesign sought. By my present improvement the design is not impaired, andthe entire construction is materially cheapened without sacrifice toquality.

Another advantage in the present case and by my improved constructionand combination relates to convenience of adjustment. In all previousconstructions much labor is required to secure the proper adjustment toadapt the lock to doors of difl'crent thicknesses. By the presentconstruction precisely the adjustment proper can be at once determined.

In the drawings Figure 1 is a vertical section of a door equipped withmy invention and showing certain par-ts in elevation. Fig. 2 is a'relatively enlarged view, mainly in section, of the cylinder lockdetached.

Fig. 3 is a view inder lock.

1 represents a door.

2 represents the case of an ordinary lock, such as a rim or mortiselock.

3 represents an escutcheon arranged to be applied to .the outer side ofthe door 1.

It is unnecessary for me to illustrate the type of lock or latchmechanism contained in the case 2, it being sufiicient merely to statethat the roll-back 4 is designed to op erate said mechanism or parts ofsaid mechanism, as desired. The roll-back 4.- is operable by akey-controlled plug 5, which constitutes part of the cylinder lock. Thecylinder lock in this instance has a telescopic body portion composed(it the two sections 67. The section 7 carries the roll-back 4. Thesection 6 carries the rotatable plug 5. The plug 5 and the roll-back 4are suitably connected so that when thetwo sections 67 are adjusted toand fro, operative connection between the plug 5 and the roll-back willnot be disturbed. The parts 6 and 7 of the cylinder lock are madeadjustable to enable the cylinder lock to be applied to doors ofdifferent thicknesses, and also to cause the plug 5 to take its properposit-ion in an opening in the escutcheon plate 3, as shown in Fig. 1.The section 7 of the cylinder lock is provided with a screw-thread atits inner end, whereby the same may be screwed into the lock case 2 tocause the roll-back 4 to assume the proper position therein. The operating device for adjusting the sections 67 of the cylinder lock is soconstructed that it may be operated from the outer end, and in theparticular form shown in the drawings this operating device comprises ascrew 8, which passes through the inner end wall of the section 7 and issuitably held against independent longitudinal movement relatively tothe section 7 by the head of the screw 8 and by an internal collar 9.The threaded part of the screw 8 passes through a thread ed abutment 10carried by the section 6. The outer end of the screw 8 is provided witha transverse slot 11, to receive the end of a screw-driver, which mayconstitute one effective tool for adjusting the length of the cylinderlock to the particular door to which the lock is applied.

In assembling the parts thus tandescribed, the practice would be asfollows: Assuming the lock 2 is a rim lock, the part 7 of the of theouter end of said cylcylinder lock would be screwed into place in thecase 2, preferably before the lock 2 is applied to the door 1. Theproper position of the roll-back 4 may be easily determined under suchconditions. When properly po sitioned, the cylinder lock section 7 isclamped in any suitable way against movement relatively to the lock case2. A transverse passage is then bored through the stile of the door 1,of a suflicient size to freely permit the passage of the cylinder lock.The lock 2 is then applied to the door, the cylinder lock being passedthrough the aforesaid bore. The escutcheon 8 is then placed against theoutside of the door and an observation taken as to whether the plug 5stands in the proper position in the opening in the escutcheon designedto receive the same. If it stands out too far, or if it does not standout far enough, the operator simply removes the escutcheon, inserts ascrew-driver into the slot 11 and turns it in the proper direction toadvance or retract the section 6 of the cylinder lock to the desireddegree, whereupon the escutcheon is applied and another test made. Thiswork occupies but a few moments and may be accomplished without theexercise of any special skill. As soon as the proper adjustment iseffected, the escutcheon plate 3 may be secured in place.

From the foregoing it is at once apparent that a very substantialeconomy is effected in the combination of parts herein described.Assuming the cylinder lock were of the old type having a flange on thepart 6, and assuming the escutcheon 3 were provided with a passage ofsufficient size to permit the entire cylinder lock to be passedtherethrough, it is obvious that the accurate adjustment of the severalparts could not be effected excepting at the expense of much labor. Forexample, it would be necessary on each testto first apply the rim lockand the escutcheon and to then pass the cylinder look through theescutcheon from the outside, enter itinto the case 2 and secure it intoposition. Repeated tests would have to be made to determine whether allof the adjustments were correct. For example, great care would have tobe taken to determine that the outer end of the cylinder lock is spacedapart from the roll-back 1, so that when the roll-back 1 is screwed into a suflicient extent to give to the same its proper position withinthe case 2, the flange at the outer end of the cylinder lock will restsnugly against the escutcheon 3. If it is found that in either respectthe adjustment is incorrect, the entire cylinder lock will have to beremoved and the length of said cylinder lock re-adjusted and anothertrial made, and so on. By the present construction, as already pointedout, much of this labor is eliminated. Not only has my improvement theadvantage of economy, but the finished article possesses in may respectsadvantages over the old type of lock well known and referred to herein,in which the cylinder lock itself is provided with an external flangearranged to rest on the escutcheon 3, for in that form the presence ofthe flange and the projection of the outer end of the cylinder lockabove the surface of the escutcheon in many instances destroys thedesign thereof. In the present instance, the only visible portion of thecylinder lock is the end of the plug 5, which may lie flush orsubstantially flush with the surface of the escutcheon.

12 represents a shoulder around the exposed end of the plug 5, saidshoulder being formed on the section 6. The shoulder 12 operates ineffect as a centering device for the escutcheon plate 3 so that it willnot bind upon that part of the plug 5 which passes through the platesince if any binding occurred, it would prevent the free rotation ofsaid plug. Obviously, this centering means may be modified in a varietyof ways, but this particular form has special advantages, because, asshown, it is concentric ,with the plug.

lVhat I claim is:

1. In a cylinder lock, two sections con-- nected together forlongitudinal adjustment relatively to each other, a roll-back carried bythe inner section, a key plug carried by the outer section, an adjustingdevice 0peratively connected with both sections, said adjusting devicebeing accessible for operation at the outer end of said cylinder lock,and an external thread on the inner section for securing the same to alock case.

2. In a cylinder lock, two sections connected together for longitudinaladjustment relatively to each other, a roll-back carried by the innersection, a key plug carried by the outer section, an adjusting deviceoperatively connected with both sections, said adjusting device beingaccessible for operation at the outer end of said cylinder lock, and anexternal thread on the inner section for securing the same to a lockcase, the outer end of said key plug projecting beyond the outer end ofthe outer section.

3. In a cylinder lock, two sections connected together for longitudinaladjustment relatively to each other, a roll-back carried by the innersection, a key plug carried by the outer section, an adjusting deviceoperatively connected with both sections, said adjusting device beingaccessible for operation at the outer end of said cylinder lock, and anexternal thread on the inner section for securing the same to a lockcase, in combination with a lock case secured to the inner section ofsaid cylinder lock.

4. In a cylinder lock, two sections connected together for longitudinaladjustment relatively to each other, a roll-back carried by the innersection, a key plug carried by the outer section, an adjusting deviceoperatively connected with both sections, said adjusting device beingaccessible for operation at the outer end of said cylinder lock, and anexternal thread on the inner section for securing the same to a lockcase, in combination with a lock case secured to the inner section ofsaid cylinder lock, and an escutcheon plate arranged to cover all of theouter end of said cylinder lock excepting the outer end of said plug.

5. In a cylinder lock, two sections connected together for longitudinaladjustment relatively to each other, an operating device carried by theinner section, a rotatable key plug carried by the outer section andadjustably connected with said operating device, an adjusting deviceoperatively connected with both sections, said adjusting device beingaccessible for operation from the outer end of the cylinder lock wherebysaid two sections may be adjusted relatively to each other. 1

HENRY G. VOIGHT.

Witnesses:

CHAS. A. PEARD, E. E. Monsn.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

